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alsa: include mixer name in sink/source properties

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This commit is contained in:
Lennart Poettering 2009-05-12 22:55:50 +02:00
parent 21ab720dd1
commit dfd6b61cd1
4 changed files with 63 additions and 14 deletions
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8
src/modules/alsa/alsa-sink.c
View file

@ -1508,6 +1508,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
size_t frame_size;
pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE;
pa_sink_new_data data;
char *control_device = NULL;
pa_assert(m);
pa_assert(ma);
@ -1664,7 +1665,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
/* ALSA might tweak the sample spec, so recalculate the frame size */
frame_size = pa_frame_size(&ss);
pa_alsa_find_mixer_and_elem(u->pcm_handle, &u->mixer_handle, &u->mixer_elem, pa_modargs_get_value(ma, "control", NULL), profile);
pa_alsa_find_mixer_and_elem(u->pcm_handle, &control_device, &u->mixer_handle, &u->mixer_elem, pa_modargs_get_value(ma, "control", NULL), profile);
pa_sink_new_data_init(&data);
data.driver = driver;
@ -1687,6 +1688,11 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
pa_alsa_init_description(data.proplist);
if (control_device) {
pa_alsa_init_proplist_ctl(data.proplist, control_device);
pa_xfree(control_device);
}
u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_LATENCY|(u->use_tsched ? PA_SINK_DYNAMIC_LATENCY : 0));
pa_sink_new_data_done(&data);

8
src/modules/alsa/alsa-source.c
View file

@ -1366,6 +1366,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
size_t frame_size;
pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE;
pa_source_new_data data;
char *control_device = NULL;
pa_assert(m);
pa_assert(ma);
@ -1519,7 +1520,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
/* ALSA might tweak the sample spec, so recalculate the frame size */
frame_size = pa_frame_size(&ss);
pa_alsa_find_mixer_and_elem(u->pcm_handle, &u->mixer_handle, &u->mixer_elem, pa_modargs_get_value(ma, "control", NULL), profile);
pa_alsa_find_mixer_and_elem(u->pcm_handle, &control_device, &u->mixer_handle, &u->mixer_elem, pa_modargs_get_value(ma, "control", NULL), profile);
pa_source_new_data_init(&data);
data.driver = driver;
@ -1542,6 +1543,11 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
pa_alsa_init_description(data.proplist);
if (control_device) {
pa_alsa_init_proplist_ctl(data.proplist, control_device);
pa_xfree(control_device);
}
u->source = pa_source_new(m->core, &data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY|(u->use_tsched ? PA_SOURCE_DYNAMIC_LATENCY : 0));
pa_source_new_data_done(&data);

57
src/modules/alsa/alsa-util.c
View file

@ -189,15 +189,6 @@ struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
fdl->num_fds = 0;
fdl->fds = NULL;
fdl->work_fds = NULL;
fdl->mixer = NULL;
fdl->m = NULL;
fdl->defer = NULL;
fdl->ios = NULL;
fdl->polled = FALSE;
return fdl;
}
@ -1176,6 +1167,7 @@ success:
int pa_alsa_find_mixer_and_elem(
snd_pcm_t *pcm,
char **ctl_device,
snd_mixer_t **_m,
snd_mixer_elem_t **_e,
const char *control_name,
@ -1203,9 +1195,13 @@ int pa_alsa_find_mixer_and_elem(
/* First, try by name */
if ((dev = snd_pcm_name(pcm)))
if (pa_alsa_prepare_mixer(m, dev) >= 0)
if (pa_alsa_prepare_mixer(m, dev) >= 0) {
found = TRUE;
if (ctl_device)
*ctl_device = pa_xstrdup(dev);
}
/* Then, try by card index */
if (!found) {
snd_pcm_info_t* info;
@ -1220,9 +1216,15 @@ int pa_alsa_find_mixer_and_elem(
md = pa_sprintf_malloc("hw:%i", card_idx);
if (!dev || !pa_streq(dev, md))
if (pa_alsa_prepare_mixer(m, md) >= 0)
if (pa_alsa_prepare_mixer(m, md) >= 0) {
found = TRUE;
if (ctl_device) {
*ctl_device = md;
md = NULL;
}
}
pa_xfree(md);
}
}
@ -1258,6 +1260,9 @@ int pa_alsa_find_mixer_and_elem(
}
if (!e) {
if (ctl_device)
pa_xfree(*ctl_device);
snd_mixer_close(m);
return -1;
}
@ -1601,6 +1606,36 @@ void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm, snd_m
pa_alsa_init_proplist_pcm_info(c, p, info);
}
void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name) {
int err;
snd_ctl_t *ctl;
snd_ctl_card_info_t *info;
const char *t;
pa_assert(p);
snd_ctl_card_info_alloca(&info);
if ((err = snd_ctl_open(&ctl, name, 0)) < 0) {
pa_log_warn("Error opening low-level control device '%s'", name);
return;
}
if ((err = snd_ctl_card_info(ctl, info)) < 0) {
pa_log_warn("Control device %s card info: %s", name, snd_strerror(err));
snd_ctl_close(ctl);
return;
}
if ((t = snd_ctl_card_info_get_mixername(info)))
pa_proplist_sets(p, "alsa.mixer_name", t);
if ((t = snd_ctl_card_info_get_components(info)))
pa_proplist_sets(p, "alsa.components", t);
snd_ctl_close(ctl);
}
int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents) {
snd_pcm_state_t state;
int err;

4
src/modules/alsa/alsa-util.h
View file

@ -66,7 +66,9 @@ typedef struct pa_alsa_profile_info {
int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev);
snd_mixer_elem_t *pa_alsa_find_elem(snd_mixer_t *mixer, const char *name, const char *fallback, pa_bool_t playback);
int pa_alsa_find_mixer_and_elem(snd_pcm_t *pcm, snd_mixer_t **_m, snd_mixer_elem_t **_e, const char *control_name, const pa_alsa_profile_info*profile);
int pa_alsa_find_mixer_and_elem(snd_pcm_t *pcm, char **ctl_device, snd_mixer_t **_m, snd_mixer_elem_t **_e, const char *control_name, const pa_alsa_profile_info*profile);
void pa_alsa_init_proplist_ctl(pa_proplist *p, const char *name);
/* Picks a working profile based on the specified ss/map */
snd_pcm_t *pa_alsa_open_by_device_id_auto(